<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<style>
		.box{
			width: 20px;
			height: 20px;
		}
	</style>
	<body>
		<div class="box"></div>
	</body>
</html>
<script>
	
</script>